Two point source

  • Thread starter rrosa522
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  • #1
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Homework Statement


Two point sources, S1 and S2, are vibrating in phase and produce waves with a wavelength of 2.5 m. The two waves overlap at a nodal point. Calculate the smallest corresponding difference in path length for this point.

Homework Equations




The Attempt at a Solution


I really don't know how to start this question. How can I find the length when I am only given the wavelength
 

Answers and Replies

  • #2
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What relevant equations do you think you would need?
 
  • #3
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What relevant equations do you think you would need?
sinθn= (n-1/2) (λ/d) , honestly I really don't understand what this question is asking
 
Last edited:
  • #4
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Do you know what sources are, nodal points and the paths from the sources to the point on the nodal line?
 
  • #5
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Do you know what sources are, nodal points and the paths from the sources to the point on the nodal line?
yes
 
  • #6
176
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There is a relationship which shows that the length of a line from a point on nodal line n, to source 1 and the length of another line from the same point on nodal line n, to source 2, when subtracted have a value dependent on the wavelength of the sources. Do you remember learning about path length difference?
 

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